Knife.



C. H. ROTH.

KNIFE.

APPLlCATlON FILED MAR. 13. I917.

1,262,390. Patented Apr. 9,1918.

CARL H. ROTH, F NEWARK, NEW JERSEY.

KNIFE.

Specification of Letters Patent.

Patented Apr. 9, 1918.

Application filed March 13, 1917. Serial No. 154,470.

- To all whom it may concern:

Be it known that I, CARL H. ROTH, a citizen of the United States, residing at N ewark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Knives; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to characters of reference marked thereon, which form a part of this specification.

This invention relates, generally, to improvements in lmives, and similar tools; and, the present invention has reference, more particularly, to a novel looking or retaining attachment for looking or retaining a knife-blade or other tool in its positively closed or opened relation to the handle by means of such looking or retaining attachment, unless such attachment is first manipulated and retained from its retaining engagement with the knife-blade or other tool.

The present invention, therefore, has for its principal object to provide in connection with a knife or tool-handle, a simple and efficiently operating looking or retaining means mounted upon a handle for the purpose of looking or retaining a knife-blade or other tool-member in either its closed or opened relation to the said handle, the operation of the looking or retaining attachment being such so that it is easily manip-' ulated to permit the knife-blade or other tool-member to be brought from its locked and closed relation with the handle to its opened and locked relation with the handle, or vice versa.

Other objects of the present invention not at this time more particularly enumerated will be clearly understood from the following detailed description of the present 1nvention.

With the various objects of the present invention in view, the said invention consists, primarily, in the novel looking or retaining attachment for knives and tools, in general, and hereinafter more fully set forth; and, the 111161111011 consists, furthermore, in the novel arrangements and combinations of the several devices and parts, as well as in the details of the construction of-the same, all of which will be more fully described in the following specification, and then finally embodied in the clauses of the claim which are appended to and which form an essential part of the said specification.

The invention is clearly illustrated in the accompanying drawings, in which Figure 1 is aside elevation of a hunting knife, with the knife-blade in its closed and locked position, said View showing one embodiment of the principles of the present invention; and Fig. 2 is a top-edge view of the same.

Fig. 3 is a longitudinal vertical section through the handle or casing of the knife, with the looking or retaining means in its raised relation, and the pivoted knife-blade represented in its opened relation; and Fig. 4 is a similar view of the parts represented in said Fig. 3, showing the knife-blade open, but locked against movement.

Fig. 5 is a view, partly in elevation and partly in section, of a handle and locking or retaining attachment for detachably securing to said handle to the shank of a suitable tool, as a screw-driver or the like.

Similar characters of' reference are employed in the several above described views to indicate corresponding parts.

Referring now to Figs. 1 to 4 inclusive of the said drawings, the reference-characters 1 and 2 indicate the two metal side-members of a knife-handle or casing provided with the end-portions 3, each end-portion 3 having a straight-marginal edge, as 4, and ears, as 5, providing with said straight edges a suitably formed offsets 6. Suitably mounted upon the outer faces of the side-faces1 and 2 are the usual ornamental shells 7, of pearl,

celluloid, or any other suitable material, and arranged between the upper edge-portions and the ends of the said side-members 1 and 2, at one end of the handle, is a'spring-memher 8, the several elements being secured in their assembled relation by means of pins 9, so as to provide the handle with a suitable knife-blade receiving chamber, as 10.

The said springmember 8, has its portion 11 movably disposed, as in the usual constructions of knives, between the inner surface-portions of the two members 1 and 2, said portion 11 being formed with an up wardly extending part, as 12, and a rearwardly extending finger or extension 15 forming with a part ofthe upper edge of said portion 11, a receiving space 14:. Pivotallymounted upon a pin 15, between the lower corner-portion 111 en a 'ement with the lower surface- 301'- tion of the said finger or projection 13, substantially as indicated in Fig. 8 of the drawings. At its opposite end-portion, the said trigger or pawl is made with a fingerpieee, as 18, usually of the same width as the width of the lllllfCdIH-Iltl'lfl, the said fingerpiece being made with oiisets 19 adapted to be moved into frictional contact with the oil"- sets 6 for more positively retaining the said trigger or pawl in its locking relation when the knife-blade 19 is in its closed or opened position.

As shown, the said knife-blade is pivot ally mounted upon a pin 20 by means of its shank-portion 2 1, which is cut away, as at 22, to provide a suitable stop, and to cause this end-portion of the knife-blade, when opened, to readily conform to and lit the lower corner-portion 23 of the movable portion 11 of the springmember S, as will be clearly seen "from an inspection of Fig. 4: of the drawings.

The operation of the device is very simple and is readily understood from an inspection of the drawings.

Thus, when the trigger or pawl is in its raised position, indicated in Fig. 3 of the drawings, the knife-blade may be readily opened or closed, as will be clearly evident, and when the knife-blade is in its open position, to readily secure the same in its rigid relation to the handle, all that is necessary is to move the trigger or pawl into the position indicated in Fig. a of the drawings, whereby the extension 1'? is caused to bear down upon the portion 11 of the springmember 8, so that the part 23 oi the said spring-member positively bears upon the edge of the shank-portion 21 of the knifeblade, with the cut away part 22 of said shank-portion snugly fitting against the To again close the knife-blade, the trigger or pawl is moved into the position indicated. in said 3 of the drawings, whereby the portion 11 of the spring-member S is raised suiiiciently to permit of the closing of the knife-blade. By again returning the trigger or pawl into its closed relation, as indicated in Figs. 1, 2 and 3, the said extension 17 is once more caused to bear upon the upper edge-portion of the part 11 of the spring-member 8, whereby the lower ec ge-portion of the part 23 is reused to bear firmly upon the edge of the shank-portion 21 of the knifeblade, so that thereby the latter will be rigidly secured within thechamber 10 of the iandle oi the knife;

in Fig. 5 of the drawings, 1 have illustrated a device consisting of a sultably formed handle 41 to which is secured, by means or pins 412, a receiving socket or sleeve-like member 43, said member 13 having a portion extending beyond the part a l of the handle, and being provided in said part with a projection or lug, as 5. The said socket or sleeve-like member 15 is also provided with a slotted portion a6, across which extends a pivot-pin Pivotally disposed upon said pin is a member as which is formed at its forward portion with an upwardly projecting part &9, and a rearwardly extending lifting finger or extension 50 forming with the upper surfaceportion of said member 48 a receiving space, as 51. The said member is also provided with a pair or pintle-receiving ears 52, and a pintle 53, upon which is pivotally disposed a trigger or pawl oi" the general construction indicated in Figs 1 to t inclusive. This trigger or pawl, which is indicated by the reference-character 5 1, is formed at one end with a lifting portion adapted to enter the said receivin space 50 and to be moved into lifting engagement with the lower surface-portion of the said finger or projection 50. At its opposite end-portion the said trigger or pawl is made with a fingerpiece 56, operatingin the manner of the construction of the trigger or pawl represented in said Figs. 1 to 1 inclusive, for the proper manipulation of the trigger or pawl and to raise the member or element 18 sutliciently upon its pivot-pin L7, so that a retaining recess or depression 59 in the lower ec ge-portion oi the shank 58 of a screw-driver 57, or other suitable tool, can be lifted out of its engagement with the previously-mentioned portion i5. Nhen the trigger or pawl is in the positionindicated in said Fig. 5 of the drawings, the said screwdriver, or other tool, having been previously inserted into position in the socket orv sleeve-like member 43, will be suitably retained in its rigid holding orlockedengagement with the handle 11, as will be clearly evident from an inspection of said Fig. 5.

From the foregoing description of my present invention it will be clearly seen that I have provided a simply constructed and effectively operating locking or retaining attachment which can be easilymanipulated for locking or retaining a knife-blade or other tool in-its positively closed or opened relation to a handle; and that, furthermore, my invention is applicable to the attachment of tool-elements or knife-blades to a handle, whether pivotally connected with the handle, a manner as indicated in Figs. 1 to 1 of the drawings, or whether detachably connected therewith in the manner asrepre- ,sented in Fig.5 of the drawings.

I am aware that changes may be made in the general arrangements and combinations of the several devices and parts, as well as in the details of the construction of the said parts, without departing from the scope of my present invention as set forth in the foregoing specification, and as defined in the clauses of the claim, which are appended thereto. Hence, I do not limit my present invention to the exact arrangements and combinations of the several devices and parts as described in the said specification, nor do I confine myself to the exact details of the construction of the said parts, as illustrated in the accompanying drawings.

I claim 1. In a knife or tool of the character set forth, a handle-body having a receiving portion in which the shank-portion of the knifeblade or tool-member is disposed, a springmember forming a part of said handle-body, said spring-member being provided at one end thereof with a rearwardly extending finger and a receiving recess, and a trigger pivotally connected with said handle-body, said trigger having a lifting member adapted to enter said receiving recess and engage the said finger.

2. A knife comprising a handle consisting of a pair of side-members and a springmember mounted between said side-members to provide a receiving portion, a knife-blade pivoted in said receiving portion, said sidemembers being provided with upwardly extending end-portions and pintle-recelving ears, said spring-member having a portion extending between the said upwardly extending end-portions of said side-members, said upwardly extending portion of the said spring-member being provided with a rearwardly extending finger and a receiving recess, and a trigger pivotally mounted betweensaid pintle-receiving ears, said trigger having a lifting member adapted to enter said recess and engage the said finger.

3. A knife comprising a handle consisting of a pair of side-members and a spring-member mounted between said side members to provide a receiving portion, a knife-blade pivoted in said receiving portion, said side members being provided with upwardly extending end-portions and pintle-receiving ears, said spring-member having a portion extending between the said upwardly eX tending end-portions of said side-members, said upwardly extending portion of the said spring-member being provided with a rearwardly extending finger and a receiving recess, and a trigger pivotally mounted between said pintle-receiving ears, said trigger having a lifting member adapted to enter said recess and engage the said finger, the said upwardly extending portions of the said side-members being also provided with offsets, and a fingerpiece forming part of said trigger, said fingerpiece having ofi'-sets adapted to be brought into frictional retain- A ing engagement with the off-sets of said upwardly extending portions of said springmember,

In testimony, that I claim the invention set forth above I have hereunto set my hand this 10th day of March, 1917.

CARL H. ROTH. Witnesses:

LOUISE Ito r11, FREDK. C. FRAENTZEL.

Games of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

